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![What is the value of Erxn at 300 K when [H+] = 0.100 M, [NO3]= 0.0400 M, [Cu2+] = 0.0250 M, and the partial pressure of
NO is 0.00280 atm?
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- Which of the following quantities can be taken to be independent of temperature? independent of pressure? (a) H for a reaction (b) S for a reaction (c) G for a reaction (d) S for a substance"A 1-L flask is filled with 1.45 g of argon at 25 ∘C. A sample of ethane vapour is added to the same flask until the total pressure is 1.11 bar ."(A) What is the partial pressure of Argon PAr , in the flask?(B) What is the partial pressure of ethane, Pethane , in the flask?Given R= 8.31 J mol·' K-' mol', k= 1.38 x10-23 J K-', NA = 6.23 x 10²3 mol- 1. Calculate a) the mean translational kinetic energy of carbon dioxide molecule with a relative molecular mass of 44 at 20 °C [ans: 6.07×10-21 J] b) the mean translational kinetic energy of a molecule on an ideal gas at 10 °C? [ans: 5.86×10-21 J]
- What is AG for the decomposition of CaCO3 at 298 K and a partial pressure of CO2 of 4.00x10-4 bar? CaCO3(s) → CaO(s) + CO2(g) AGrxn (298 K, Pco2 = 0.400 mbar) = ??? CO2(g) Compound AG°; (kJ mol·1) CACO3(s) СаО(s) -1129 -604 -3945) The system, 2H₂O(g) + 2Cl₂(g) — 4HCl(g) + O₂(g), has a value of 8.00 for Kp. Initially, the partial pressures of H₂O(g) and Cl₂(g) are set at 0.100 atm, while those of HCl(g) and O₂(g) are set at 0.250 atm. Which statement below is true? A) Qp> Kp and the reaction proceeds to the right to reach equilibrium. B) The reaction system is already at equilibrium. C) Qp K, and the reaction proceeds to the left to reach equilibrium. E) Qp < Kp and the reaction proceeds to the right to reach equilibrium.What is Boyle's law constant, kp if a sealed rigid container with a volume, Vof 0.600 L has a pressure, Pof 130.0 kPa? V = kg(1/P) BIUA - A - I E E E X x, = E 12pt Paragraph fx MacBook Air
- (a) A rigid tank contains 1.60 moles of helium, which can be treated as an ideal gas, at a pressure of 28.0 atm. While the tank and gas maintain a constant volume and temperature, a number of moles are removed from the tank, reducing the pressure to 5.00 atm. How many moles are removed? mol (b) What If? In a separate experiment beginning from the same initial conditions, including a temperature T, of 25.0°C, half the number of moles found in part (a) are withdrawn while the temperature is allowed to vary and the pressure undergoes the same change from 28.0 atm to 5.00 atm. What is the final temperature (in °C) of the gas? °C2 H2(g) + 2 NO(g) = 2 H2O(g) + N2 (g) K, at 120°C = 2.42. At a given moment, it is found that the partial pressures of H2, NO, H20 and N2 are 1.1, 1.3, 0.78 and 2.2 atm, respectively. Which of the following statements describes the situation? Qp = 1.2 so the reaction goes to the right Qp = 1.2 so the reaction goes to the left O Qp = 0.65 so the reaction goes to the right O Qp = 0.65 so the reaction goes to the left O The reaction is at equilibriumGiven the reaction: 2 B(s) + 3 H2(g) ↽−−⇀ 2 BH3(g) at 25 oC. At equilibrium, 0.254 moles BH3, 0.588 moles H2 and 0.666 mole B are found in a 1.0 L flask. Determine the value of Kc. Express the answer to 3 sig. figs.
